# 基础符号
snippet qxly "去心邻域" iA
\mathring{U}(${1:x_0}, \delta) 
endsnippet

# 无穷
snippet oo "无穷" iA
\infty 
endsnippet

# 任意
snippet ry "任意"
\forall 
endsnippet

# 存在
snippet cz "存在"
\exists 
endsnippet

# 不存在
snippet bcz "不存在"
\nexists 
endsnippet

# 非空
snippet fk "非空"
\varnothing
endsnippet

# 偏导数
snippet pd "偏导" iA
\partial 
endsnippet

# 倒三角
snippet dsj "倒三角"
\nabla
endsnippet

# 正三角
snippet sj "三角"
\triangle 
endsnippet

# 方框\Box\square\boxdot
snippet fk "方框" 
\Box 
endsnippet

# 大括号
snippet xkh "大（" i
\left( $1 \right) $0
endsnippet

snippet zkh "大[" i
\left[ $1 \right] $0
endsnippet

snippet dkh "大{" i
\left\\\{ $1 \right\\\} $0
endsnippet

snippet || "长|" i
\bigg|_{$1} $0
endsnippet

snippet ( "()" iA
($1)$0
endsnippet

snippet dm "(x,y)" i
( ${1:x},${2:y} ) $0
endsnippet

snippet [ "[]" iA
[$1]$0
endsnippet

snippet { "{}" iA
\{$1\}$0
endsnippet

snippet sl "数列"
\\\{$1\\\} $0
endsnippet

snippet shx "上横线"
\overline \{$1\} $0
endsnippet

# 数学书的章节符\s
# 网页笔记上的章节符\p
